Genetic characterisation of Cylindrospermopsis raciborskii (Nostocales, Cyanobacteria) isolates from Africa and Europe
نویسندگان
چکیده
منابع مشابه
Varied diazotrophies, morphologies, and toxicities of genetically similar isolates of Cylindrospermopsis raciborskii (nostocales, cyanophyceae) from Northern Australia.
The potentially toxic freshwater cyanobacterium Cylindrospermopsis raciborskii has become increasingly prevalent in tropical and temperate water bodies worldwide. This paper investigates the effects of different nitrogen sources (NO3-, NH4+, and omission of a fixed form of nitrogen) on the growth rates, morphologies, and cylindrospermopsin (CYL) concentrations (expressed as a percentage of the ...
متن کاملGenetic characterization of Cylindrospermopsis raciborskii (cyanobacteria) isolates from diverse geographic origins based on nifH and cpcBA-IGS nucleotide sequence analysis.
Isolates of the toxic, N(2)-fixing species Cylindrospermopsis raciborskii from various geographic locations were analyzed with respect to their genetic diversity based on the nifH and cpcBA-IGS genes. Gene sequences clustered according to their geographic origin, with the nifH sequences separating into European, Australian, and American groups and the cpcBA-IGS sequences separating into America...
متن کاملDistribution and toxicity of Cylindrospermopsis raciborskii (cyanobacteria) in portuguese freshwaters
The cyanobacterium Cylindrospermopsis raciborskii has become increasingly prevalent in freshwaters worldwide. This species is of concern from a water quality perspective due to its known ability to produce a potent hepatotoxic alkaloid cylindrospermopsin, which has been implicated in outbreaks of human sickness and cattle mortality. C. raciborskii isolates from Brazil have also been found to pr...
متن کاملThe inhibitory effect of calcium on Cylindrospermopsis raciborskii (cyanobacteria) metabolism
Cylindrospermopsis raciborskii (Woloszynska) Seenaya & Subba Raju is a freshwater cyanobacterium of worldwide distribution. In the North-eastern region of Brazil many eutrophic water reservoirs are characterized by the dominance of C. raciborskii, with recurrent occurrence of blooms. These water bodies have high conductivity due to a high ionic concentration, and are defined as hard (with high ...
متن کاملAcute Effects of a Cylindrospermopsis Raciborskii (Cyanobacteria) Strain on Mouse, Daphnia and Fish
Eutrophication process and, more recently, global warming have been considered major factors in disturbing aquatic ecosystems dynamics, leading to a shift in plankton communities and to the dominance of cyanobacteria worldwide [1]. As a consequence of cyanobacterial blooms, the impairment of water quality has lead to high costs in economy, mainly due to losses in fisheries and tourism industrie...
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ژورنال
عنوان ژورنال: Harmful Algae
سال: 2008
ISSN: 1568-9883
DOI: 10.1016/j.hal.2008.02.010